Free Fingerprint Verification SDK is a 32 bit application. So you used JVM should be a 32 bit too.Next, FS80H scanner is not supported in the Free Fingerprint Verification SDK out of the box. You need to replace the ftrScanAPI.dll with the one downloaded from the Futronic website in order to get this scanner detected in this SDK.

By the way, I need to mention, that Free Fingerprint Verification SDK is quite limited:

1. It allows to enroll only 10 fingers2. it allows to perform only verification (1:1 matching)3. it uses its own proprietary database

Consider to use a VeriFinger SDK or MegaMatcher SDK, if you need to create an application, which would support more than 10 users, or identification is needed, or some non proprietary database usage is needed.